Control unit casing



FIG. 1 is a front-top perspective view of a control unit casing according to an embodiment of the present disclosure;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a third side view thereof; and,

FIG. 7 is a fourth side view thereof. 

CLAIM The ornamental design for a control unit casing, as shown and described. 